Jennifer and Alex help the club out as volunteers at a herding trial where their champion Cardigans try the herding instinct test. Meanwhile, Jennifer suspects times are being manipulated in the actual trial to favor certain contestants. They decide to follow up at a later trial where they find themselves involved in solving one murder and preventing another - with the hel Jennifer and Alex help the club out as volunteers at a herding trial where their champion Cardigans try the herding instinct test. Meanwhile, Jennifer suspects times are being manipulated in the actual trial to favor certain contestants. They decide to follow up at a later trial where they find themselves involved in solving one murder and preventing another - with the help of her young dog's newly discovered herding ability.